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Zeng X, Jiang W, Du Z, Kokini JL. Encapsulation of tannins and tannin-rich plant extracts by complex coacervation to improve their physicochemical properties and biological activities: A review. Crit Rev Food Sci Nutr 2022:1-14. [PMID: 35549567 DOI: 10.1080/10408398.2022.2075313] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
As a major class of dietary polyphenols, tannins are demonstrated to have various health-promoting properties. Although tannins have been widely utilized in food, pharmaceutical and many other industries, the applications of tannins are quite limited due to their poor stability, sensory attributes and bioavailability. Encapsulation helps improve all of these properties. Complex coacervation, one of the most effective encapsulation techniques, is known for its simplicity, low cost, scalability and reproducibility in encapsulation of functional components. In recent years, complex coacervation has been successfully used for encapsulation of tannins and tannin-rich plant extracts. In this article, the research progress in encapsulating tannins and tannin-rich plant extracts by complex coacervation to improve their physicochemical properties and biological activities is critically reviewed for the first time. Encapsulation of tannins and tannin-rich plant extracts can effectively improve their sensory characteristics, stabilities, bioavailability, anti-hypercholesterolemia, anti-diabetic, antioxidant, anticancer and antimicrobial activities. In particular, the enhancement of biological activities of tannins and tannin-rich plant extracts is usually correlated to their improved physicochemical properties imparted by the encapsulation technique. Moreover, we introduce the issues that need to be further resolved in future studies on encapsulation of tannins and tannin-rich plant extracts by complex coacervation.
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Affiliation(s)
- Xiangquan Zeng
- Department of Food Quality and Safety, School of Food and Health, Beijing Technology and Business University, Beijing, PR China.,Department of Food Science, College of Agriculture, Purdue University, West Lafayette, IN, USA
| | - Weibo Jiang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
| | - Zhenjiao Du
- Department of Grain Science and Industry, Kansas State University, Manhattan, KS, USA
| | - Jozef L Kokini
- Department of Food Science, College of Agriculture, Purdue University, West Lafayette, IN, USA
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Quaternary Ammonium Chitosans: The Importance of the Positive Fixed Charge of the Drug Delivery Systems. Int J Mol Sci 2020; 21:ijms21186617. [PMID: 32927715 PMCID: PMC7555869 DOI: 10.3390/ijms21186617] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 09/03/2020] [Accepted: 09/07/2020] [Indexed: 01/12/2023] Open
Abstract
As a natural polysaccharide, chitosan has good biocompatibility, biodegradability and biosecurity. The hydroxyl and amino groups present in its structure make it an extremely versatile and chemically modifiable material. In recent years, various synthetic strategies have been used to modify chitosan, mainly to solve the problem of its insolubility in neutral physiological fluids. Thus, derivatives with negative or positive fixed charge were synthesized and used to prepare innovative drug delivery systems. Positively charged conjugates showed improved properties compared to unmodified chitosan. In this review the main quaternary ammonium derivatives of chitosan will be considered, their preparation and their applications will be described to evaluate the impact of the positive fixed charge on the improvement of the properties of the drug delivery systems based on these polymers. Furthermore, the performances of the proposed systems resulting from in vitro and ex vivo experiments will be taken into consideration, with particular attention to cytotoxicity of systems, and their ability to promote drug absorption.
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Beconcini D, Felice F, Fabiano A, Sarmento B, Zambito Y, Di Stefano R. Antioxidant and Anti-Inflammatory Properties of Cherry Extract: Nanosystems-Based Strategies to Improve Endothelial Function and Intestinal Absorption. Foods 2020; 9:E207. [PMID: 32079234 PMCID: PMC7074069 DOI: 10.3390/foods9020207] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/11/2020] [Accepted: 02/14/2020] [Indexed: 12/12/2022] Open
Abstract
Cherry fruit has a high content in flavonoids. These are important diet components protecting against oxidative stress, inflammation, and endothelial dysfunction, which are all involved in the pathogenesis of atherosclerosis, which is the major cause of cardiovascular diseases (CVD). Since the seasonal availability of fresh fruit is limited, research has been focused on cherry extract (CE), which also possesses a high nutraceutical potential. Many clinical studies have demonstrated the nutraceutical efficacy of fresh cherries, but only a few studies on CE antioxidant and anti-inflammatory activities have been carried out. Here, the results concerning the antioxidant and anti-inflammatory activities of CE are reviewed. These were obtained by an in vitro model based on Human Umbilical Vein Endothelial Cells (HUVEC). To clarify the CE mechanism of action, cells were stressed to induce inflammation and endothelial dysfunction. Considering that antioxidants' polyphenol compounds are easily degraded in the gastrointestinal tract, recent strategies to reduce the degradation and improve the bioavailability of CE are also presented and discussed. In particular, we report on results obtained with nanoparticles (NP) based on chitosan derivatives (Ch-der), which improved the mucoadhesive properties of the chitosan polymers, as well as their positive charge, to favor high cellular interaction and polyphenols intestinal absorption, compared with a non-mucoadhesive negative surface charged poly(lactic-co-glycolic) acid NP. The advantages and safety of different nanosystems loaded with natural CE or other nutraceuticals are also discussed.
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Affiliation(s)
- Denise Beconcini
- Department of Life Sciences, University of Siena, via Aldo Moro 2, 53100 Siena, Italy
- Cardiovascular Research Laboratory, Department of Surgery, Medical, Molecular, and Critical Area Pathology, University of Pisa, via Paradisa 2, 56100 Pisa, Italy;
- Department of Pharmacy, University of Pisa, via Bonanno 33, 56100 Pisa, Italy; (A.F.); (Y.Z.)
| | - Francesca Felice
- Cardiovascular Research Laboratory, Department of Surgery, Medical, Molecular, and Critical Area Pathology, University of Pisa, via Paradisa 2, 56100 Pisa, Italy;
| | - Angela Fabiano
- Department of Pharmacy, University of Pisa, via Bonanno 33, 56100 Pisa, Italy; (A.F.); (Y.Z.)
| | - Bruno Sarmento
- i3S-Instituto de Investigação e Inovação em Saúde, University of Porto, Rua Alfredo Allen 208, 4200-153 Porto, Portugal;
- INEB—Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal
| | - Ylenia Zambito
- Department of Pharmacy, University of Pisa, via Bonanno 33, 56100 Pisa, Italy; (A.F.); (Y.Z.)
- Interdepartmental Research Center Nutraceuticals and Food for Health, University of Pisa, via Borghetto 80, 56100 Pisa, Italy
| | - Rossella Di Stefano
- Cardiovascular Research Laboratory, Department of Surgery, Medical, Molecular, and Critical Area Pathology, University of Pisa, via Paradisa 2, 56100 Pisa, Italy;
- Interdepartmental Research Center Nutraceuticals and Food for Health, University of Pisa, via Borghetto 80, 56100 Pisa, Italy
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Felice F, Fabiano A, De Leo M, Piras AM, Beconcini D, Cesare MM, Braca A, Zambito Y, Di Stefano R. Antioxidant Effect of Cocoa By-Product and Cherry Polyphenol Extracts: A Comparative Study. Antioxidants (Basel) 2020; 9:E132. [PMID: 32028655 PMCID: PMC7070601 DOI: 10.3390/antiox9020132] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 01/30/2020] [Accepted: 01/31/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Recent studies have highlighted the importance of cherry and cocoa extracts consumption to protect cells from oxidative stress, paying particular attention to cocoa by-products. This study aims to investigate the protective effect of cocoa husk extract (CHE) and cherry extracts (CE) against ROS-induced oxidative stress in Human Umbilical Vein Endothelial Cells (HUVECs). METHODS CE and CHE had antioxidant activity characterized by total polyphenols content (TPC). HUVECs were treated for 2 h and 24 h with increasing TPC concentrations of CE and CHE (5-10-25-50-100 µg Gallic Acid Equivalent (GAE)/mL) and then with H2O2 for 1 h. Cell viability and ROS production were evaluated. CE and CHE polyphenols permeability on excised rat intestine were also studied. RESULTS CE and CHE showed a similar antioxidant activity (2.5 ± 0.01 mmol Fe2+/100 g FW (fresh weight) and 2.19 ± 0.09 mmol Fe2+/100 g FW, respectively, p > 0.05) whereas CHE had a higher TPC (7105.0 ± 96.9 mg GAE/100 g FW) than CE (402.5 ± 8.4 mg GAE/100 g), p < 0.05. The in vitro viability assay showed that both extracts were non-cytotoxic. CHE resulted in protection against ROS at lower concentrations than CE. CHE showed a 2-fold higher apparent permeability compared to CE. CONCLUSIONS CHE represents a high-value antioxidant source, which is interesting for the food and pharmaceutical industries.
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Affiliation(s)
- Francesca Felice
- Cardiovascular Research Laboratory, Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa, 56100 Pisa, Italy; (M.M.C.); (R.D.S.)
| | - Angela Fabiano
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (A.F.); (M.D.L.); (A.M.P.); (D.B.); (A.B.); (Y.Z.)
| | - Marinella De Leo
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (A.F.); (M.D.L.); (A.M.P.); (D.B.); (A.B.); (Y.Z.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy
| | - Anna Maria Piras
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (A.F.); (M.D.L.); (A.M.P.); (D.B.); (A.B.); (Y.Z.)
| | - Denise Beconcini
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (A.F.); (M.D.L.); (A.M.P.); (D.B.); (A.B.); (Y.Z.)
| | - Maria Michela Cesare
- Cardiovascular Research Laboratory, Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa, 56100 Pisa, Italy; (M.M.C.); (R.D.S.)
- Department of Life Sciences, University of Siena, Siena 53100, Italy
| | - Alessandra Braca
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (A.F.); (M.D.L.); (A.M.P.); (D.B.); (A.B.); (Y.Z.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy
| | - Ylenia Zambito
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (A.F.); (M.D.L.); (A.M.P.); (D.B.); (A.B.); (Y.Z.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy
| | - Rossella Di Stefano
- Cardiovascular Research Laboratory, Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa, 56100 Pisa, Italy; (M.M.C.); (R.D.S.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy
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Anti-Inflammatory Effect of Cherry Extract Loaded in Polymeric Nanoparticles: Relevance of Particle Internalization in Endothelial Cells. Pharmaceutics 2019; 11:pharmaceutics11100500. [PMID: 31569594 PMCID: PMC6835553 DOI: 10.3390/pharmaceutics11100500] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 09/18/2019] [Accepted: 09/26/2019] [Indexed: 01/05/2023] Open
Abstract
This study aimed at evaluating the anti-inflammatory effect of natural cherry extract (CE), either free or encapsulated in nanoparticles (NPs) based on chitosan derivatives (Ch-der) or poly(lactic-co-glycolic acid) (PLGA), on human umbilical vein endothelial cells (HUVEC). CE from Prunus avium L. was characterized for total polyphenols, flavonoids, and anthocyanins content. CE and CE-loaded NP cytotoxicity and protective effect on lipopolysaccharide (LPS)-stressed HUVEC were tested by water-soluble tetrazolium salt (WST-1) assay. Pro- and anti-inflammatory cytokines (TNF-α, IL-6, IL-10, and PGE2) released by HUVEC were quantified by enzyme-linked immunosorbent assay (ELISA). All NP types were internalized into HUVEC after 2 h incubation and promoted the anti-inflammatory effect of free CE at the concentration of 2 µg gallic acid equivalents (GAE)/mL. CE-loaded Ch-der NPs showed the highest in vitro uptake and anti-inflammatory activity, blunting the secretion of IL-6, TNF-α, and PGE2 cytokines. Moreover, all NPs reduced the production of nitric oxide and NLRP3 inflammasome, and had a stronger anti-inflammatory effect than the major corticosteroid dexamethasone. In particular, the results demonstrate that natural CE protects endothelial cells from inflammatory stress when encapsulated in NPs based on quaternary ammonium chitosan. The CE beneficial effects were directly related with in vitro internalization of CE-loaded NPs.
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Fabiano A, Brilli E, Mattii L, Testai L, Moscato S, Citi V, Tarantino G, Zambito Y. Ex Vivo and in Vivo Study of Sucrosomial ® Iron Intestinal Absorption and Bioavailability. Int J Mol Sci 2018; 19:ijms19092722. [PMID: 30213039 PMCID: PMC6165425 DOI: 10.3390/ijms19092722] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 09/07/2018] [Accepted: 09/09/2018] [Indexed: 12/20/2022] Open
Abstract
The present study aimed to demonstrate that Sideral® RM (SRM, Sucrosomial® Raw Material Iron) is transported across the excised intestine via a biological mechanism, and to investigate the effect that this transport route may produce on oral iron absorption, which is expected to reduce the gastrointestinal (GI) side effects caused by the bioavailability of non-absorbed iron. Excised rat intestine was exposed to fluorescein isothiocyanate (FITC)-labeled SRM in Ussing chambers followed by confocal laser scanning microscopy to look for the presence of fluorescein-tagged vesicles of the FITC-labeled SRM. To identify FITC-labeled SRM internalizing cells, an immunofluorescence analysis for macrophages and M cells was performed using specific antibodies. Microscopy analysis revealed the presence of fluorescein positive particulate structures in tissues treated with FITC-labeled SRM. These structures do not disintegrate during transit, and concentrate in macrophage cells. Iron bioavailability was assessed by determining the time-course of Fe3+ plasma levels. As references, iron contents in liver, spleen, and bone marrow were determined in healthy rats treated by gavage with SRM or ferric pyrophosphate salt (FP). SRM significantly increased both area under the curve (AUC) and clearance maxima (Cmax) compared to FP, thus increasing iron bioavailability (AUCrel = 1.8). This led to increased iron availability in the bone marrow at 5 h after single dose gavage.
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Affiliation(s)
- Angela Fabiano
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy.
| | | | - Letizia Mattii
- Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy.
| | - Lara Testai
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy.
- Interdepartmental Research Center Nutraceuticals and Food for Health, University of Pisa, 56124 Pisa, Italy.
| | - Stefania Moscato
- Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy.
| | - Valentina Citi
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy.
| | | | - Ylenia Zambito
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy.
- Interdepartmental Research Center Nutraceuticals and Food for Health, University of Pisa, 56124 Pisa, Italy.
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Advances in nutraceutical delivery systems: From formulation design for bioavailability enhancement to efficacy and safety evaluation. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2018.06.011] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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